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    • 14. 发明授权
    • Water treatment process
    • 水处理工艺
    • US06296761B1
    • 2001-10-02
    • US09519926
    • 2000-03-07
    • Clarence Scheuerman, III
    • Clarence Scheuerman, III
    • B01J4900
    • C02F1/66B01J49/75C02F1/42
    • An improved water softening process is provided which also reduces anion content. A first stream of water is passed through an anion-exchange unit to remove undesirable anions and raise the pH. The first stream of water is then provided to reactor/clarifier water softening equipment, where it acts as a source of hydroxyl ions. Preferably a second stream of water which did not pass through an anion-exchange unit is also provided to the water softening equipment. The streams of water are combined and processed through the softening equipment, where hardness ions are precipitated out, yielding softened water with reduced anion content. The anion-exchange system utilized preferably has a counter-current continuous resin train and a counter-current continuous resin regeneration unit.
    • 提供了改进的水软化方法,其还降低阴离子含量。 第一流水通过阴离子交换单元以除去不需要的阴离子并提高pH。 然后将第一水流提供给反应器/澄清器水软化设备,其中其作为羟基离子源。 优选地,还没有通过阴离子交换单元的第二水流被提供给水软化设备。 通过软化设备将水流合并并加工,其中硬度离子沉淀出来,产生具有降低的阴离子含量的软化水。 所使用的阴离子交换系统优选具有逆流连续树脂系和逆流连续树脂再生单元。